CN114542803B - Heat-insulating sliding support for overhead pipeline of pipe gallery - Google Patents
Heat-insulating sliding support for overhead pipeline of pipe gallery Download PDFInfo
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- CN114542803B CN114542803B CN202111621736.7A CN202111621736A CN114542803B CN 114542803 B CN114542803 B CN 114542803B CN 202111621736 A CN202111621736 A CN 202111621736A CN 114542803 B CN114542803 B CN 114542803B
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- overhead pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
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- Supports For Pipes And Cables (AREA)
Abstract
The application discloses a heat-insulating sliding support for a pipe gallery overhead pipeline, which comprises a first support and a second support, wherein the first support is welded to the overhead pipeline, the second support is fixed on a foundation, and the first support is connected to the second support in a sliding manner so as to be capable of moving relative to the second support along the axial direction of the overhead pipeline. According to the heat-insulating sliding support for the overhead pipeline of the pipe gallery, provided by the application, the first support welded to the overhead pipeline and the second support fixed on the foundation can axially and relatively move, so that when the overhead pipeline is deformed due to expansion caused by heat and contraction caused by cold, the first support relatively moves relative to the second support to cope with the deformation, and the probability of deformation, cracking and even fracture of the supports is reduced or even eliminated.
Description
Technical Field
The application relates to the pipeline technology, in particular to a heat-insulating slidable bracket for a pipe gallery overhead pipeline.
Background
In recent years, because planning, design and construction are more convenient, later maintenance and overhaul are simpler, and the installation of underground pipeline is pipe gallery gradually, to electric power, communication and other cables, its installation in the pipe gallery is comparatively convenient, directly arrange can, but to heat transfer, chemical industry and other large-scale heat preservation pipelines, the pipeline installation in the pipe gallery is still inefficiency. Generally, before installation, the overhead pipelines with the heat-insulating outer layers are hung into an underground pipe gallery through reserved hanging openings, then conveyed to a target installation position by a trolley, and when the electric hoist is installed on a reserved interface at the top of the underground pipe gallery to hang the overhead pipelines and put the overhead pipelines at the target position, and then welded and fixed. Such a device is provided by the application patent application publication CN108119702 a.
Because the underground pipe gallery is standardized when being designed, the sizes are different and larger, the overhead pipeline with the heat-insulating outer layer is not directly arranged on the reserved cross bar support, but is independently provided with a support bracket, the overhead pipeline is welded on the support bracket, the support bracket is supported on the reserved cross bar support, in order to achieve the temperature of connection, the part of the heat-insulating layer of the overhead pipeline is required to be cut off on site to expose the outer wall of the overhead pipeline, the support bracket is directly welded on the outer wall of the overhead pipeline, and the heat-insulating layer is reset, for example, the prior application grant publication number is CN110657316B, the publication date is 2020 and 07 and 03 days, the patent of the application of a special support for a pipe gallery overhead polyurethane heat-insulating pipe is named, the special support bracket comprises an inner support bracket and an outer support bracket, the inner support bracket is connected with a working steel pipe of the polyurethane heat-insulating pipe, the outer support bracket is connected with an outer support bracket through an outer support post, and the inner support bracket and the outer support bracket is connected through an inner support fixing bolt and an outer support bracket to form the heat-insulating layer.
The patent is a first-generation product, and has the defects that an overhead pipeline with a heat-insulating layer can experience larger temperature difference in the use process, most of the joints of the structure are welded, and the other parts are in threaded connection, so that the product lacks deformability, and the phenomena of cracking, fracture, inclination and the like on the bracket are caused by thermal expansion and contraction caused by the temperature difference.
Disclosure of Invention
The application aims to provide a heat-insulating sliding support for a pipe rack overhead pipeline, which aims to solve the defects in the prior art.
In order to achieve the above object, the present application provides the following technical solutions:
a piping lane overhead line thermal insulation slidable support comprising a first support for welding to an overhead line and a second support secured to a foundation, the first support being slidably connected to the second support so as to be movable relative to the second support along an axial direction of the overhead line.
The heat-insulating sliding support for the overhead pipeline of the pipe gallery comprises an inner arc-shaped plate which is welded to the outer wall of the overhead pipeline in a fitting mode and a middle arc-shaped plate which is the same in radial size as the heat-insulating layer of the overhead pipeline, and heat-insulating materials are arranged between the inner arc-shaped plate and the middle arc-shaped plate.
The heat-insulating sliding support for the pipe rack overhead pipeline further comprises an outer arc plate attached to the outer side of the middle arc plate, wherein the outer arc plate is detachably connected with the middle arc plate, and the outer arc plate is used for moving along the axial direction of the overhead pipeline between the second supports.
The heat-insulating sliding support for the pipe rack overhead pipeline is characterized in that a limiting rail is arranged on the second support, and the first support is connected in the limiting rail in a sliding manner so as to realize relative movement with the second support.
The heat-insulating sliding support for the pipe rack overhead pipeline comprises a bottom plate, a rotating frame is connected to the two opposite sides of the bottom plate in a rotating mode, the rotating frames are provided with horizontal positions and inclined positions on the rotating stroke, the two rotating frames are unfolded to support the overhead pipeline located at the installation welding position, and the first support is connected to the second support in a sliding mode at the horizontal positions.
The heat-insulating sliding support for the pipe rack overhead pipeline is in the horizontal position, the two rotating frames are overlapped, and the first support is in sliding connection with the rotating frame located on the upper layer.
In the above-described piping lane overhead line heat-insulating slidable support, in the inclined position, the edge portion of the turret abuts on the foundation.
The heat-insulating sliding support for the pipe gallery overhead pipeline is characterized in that the rotating shaft of the rotating frame is perpendicular to the axis direction of the overhead pipeline.
The heat-insulating sliding support for the pipe rack overhead pipeline is characterized in that the rotating frame is supported on the heat-insulating pipeline at the inclined position and axially outside the position where the first support is connected.
The heat-insulating sliding support for the pipe rack overhead pipeline further comprises an auxiliary frame, wherein two ends of the auxiliary frame are respectively connected with two rotating frames at the inclined position.
In the technical scheme, the heat-insulating sliding support for the overhead pipeline of the pipe gallery, provided by the application, can axially and relatively move between the first support welded on the overhead pipeline and the second support fixed on the foundation, so that when the overhead pipeline expands with heat and contracts with cold, the first support relatively moves with respect to the second support to cope with the deformation, and the probability of deformation, cracking and even fracture of the support is reduced or even eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a usage state diagram of a second bracket according to an embodiment of the present application;
FIG. 2 is a view showing a state of use of a heat-insulating slidable support for a pipe rack overhead pipeline according to an embodiment of the present application;
FIG. 3 is a schematic structural view of a second bracket according to an embodiment of the present application;
FIG. 4 is a schematic structural view of a second bracket according to another embodiment of the present application;
FIG. 5 is a schematic view of a turret according to another embodiment of the present application;
FIG. 6 is a schematic structural view of a turret according to still another embodiment of the present application;
FIG. 7 is a schematic view of a turret according to still another embodiment of the application;
FIG. 8 is a schematic view of a part of a radial telescopic rod according to an embodiment of the present application;
FIG. 9 is a schematic view illustrating a tilting position of a turret according to another embodiment of the application;
FIG. 10 is a schematic view illustrating a horizontal position of a turret according to another embodiment of the application;
fig. 11 is a schematic structural view of a sliding leg according to an embodiment of the present application.
Reference numerals illustrate:
1. overhead piping; 2. a foundation; 3. a first bracket; 3.1, inner arc plate; 3.2, a middle arc plate; 3.3, an outer arc plate; 4. a second bracket; 4.1, a protruding part; 4.2, a bottom plate; 4.3, rotating frame; 4.4, limiting the track; 5. an auxiliary frame; 5.1, axial rod; 5.2, radial telescopic rod; 5.21, a first lever; 5.22, a second rod; 5.23, blind holes; 5.24, limiting protrusions; 5.25, an expanding part; 6. a bar-shaped hole groove; 6.1, abutting the interface; 7. a sliding leg; 7.1, dividing the rod; 7.2, rolling elements.
Detailed Description
In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.
In the embodiments of the present application, unless specifically stated otherwise, the upper, lower, axial, radial, etc. are all based on the piping lane overhead line insulation slidable support supporting the overhead line, where the overhead line is on the top, the first support and the second support are on the bottom, the axial refers to the axial direction of the overhead line, the radial refers to the radial direction of the overhead line, and so on.
As shown in fig. 1 to 11, an insulation slidable support for a piping lane overhead line 1 according to an embodiment of the present application includes a first support 3 for welding to the overhead line 1 and a second support 4 fixed to a foundation 2, the first support 3 being slidably connected to the second support 4 so as to be movable relative to the second support 4 in an axial direction of the overhead line 1.
Specifically, the overhead pipeline 1 is a pipeline with a heat insulation layer, a heat preservation layer or a heat insulation and preservation layer, such as a heating pipeline, and the heat insulation slidable support of the pipe gallery overhead pipeline 1 provided by the embodiment is used for supporting the overhead pipeline 1 to a foundation 2 in a pipe gallery, and the foundation 2 is a pipeline or cable supporting structure reserved in the pipe gallery, and can be a transverse bar, and most of the overhead pipeline 1 is a cement pier and is also directly installed on the ground. The heat-insulating sliding support of the pipe gallery overhead pipeline 1 comprises a first support 3 and a second support 4, wherein the first support 3 is directly welded to the overhead pipeline 1, the second support 4 is connected to the foundation 2, such as a cement pier or the ground or other reserved parts through anchor screws, the first support 3 is connected to the second support 4 in a sliding mode, such as the first support 3 is directly lapped on the second support 4, and the sliding direction is the axial direction of the overhead pipeline 1, so that on one hand, the support of the overhead pipeline 1 is realized through the first support 3 and the second support 4, and on the other hand, when the overhead pipeline 1 has axial displacement, such as expansion and contraction, the first support 3 can slide relative to the second support 4.
In this embodiment, the specific structures of the first bracket 3 and the second bracket 4 may refer to various bracket structures in the prior art, such as a three-dimensional frame-like structure composed of a cross bar, a vertical bar and a longitudinal bar, and only the first bracket 3 and the second bracket 4 need to be ensured to be capable of sliding relatively in the axial direction.
According to the heat-insulating sliding support for the pipe rack overhead pipeline 1, provided by the embodiment of the application, the first support 3 welded on the overhead pipeline 1 and the second support 4 fixed on the foundation 2 can axially move relatively, so that when the overhead pipeline 1 expands with heat and contracts with cold, the first support 3 moves relatively to the second support 4 to cope with deformation, and the probability of deformation, cracking and fracture of the supports is reduced or even eliminated.
In another embodiment provided by the application, the first bracket 3 further comprises an inner arc plate 3.1 bonded and welded to the outer wall of the overhead pipeline 1, and a middle arc plate 3.2 with the same radial dimension as the heat insulation layer of the overhead pipeline 1, wherein the shape of the inner arc plate 3.1 is consistent with the radial dimension of the outer wall of the overhead pipeline 1, so that the overhead pipeline 1 is better wrapped, the shape of the middle arc plate 3.2 is consistent with the shape of the heat insulation layer, so that the outer dimension is basically consistent after the installation is finished, and a heat insulation material is arranged between the inner arc plate 3.1 and the middle arc plate 3.2, so that the heat insulation of the overhead pipeline 1 is continued.
Still further, still include the laminating in outer arc 3.3 in the arc 3.2 outside, outer arc 3.3 with can dismantle the connection between the arc 3.2 in with, like spiro union or joint, outer arc 3.3 be used for with along between the second support 4 the axial direction of overhead line 1 removes, so when welding the assembly, can weld the structure that inner arc 3.1 and well arc 3.2 constitute on the outer wall of overhead line 1 at present, later connect outer arc 3.3 again, interference during welding operation is less, welding operation is more convenient.
In still another embodiment of the present application, further, a limit rail is provided on the second bracket 4, the first bracket 3 is slidably connected to the limit rail to achieve a relative movement with respect to the second bracket 4, for example, two rows of vertical rods are welded on the second bracket 4, and a limit rail is formed between the two rows of vertical rods, that is, an axial sliding stroke of the first bracket 3, in an alternative manner, an edge of the first bracket 3 may be attached to the limit rail, for example, directly slide on the vertical rods, at this time, the first bracket 3 cannot move radially (the radial deformation is small and is not substantially affected), and preferably, a gap is provided between the edge of the first bracket 3 and the limit rail, and the gap enables the first bracket 3 to have a certain radial movement amplitude.
In a further embodiment of the application, the second support 4 comprises a bottom plate 4.2, two opposite sides of the bottom plate 4.2 are respectively and rotatably connected with a rotating frame 4.3, the rotating frame 4.3 is rotatably connected on the bottom plate 4.2 through a rotating shaft, the rotating frame 4.3 is in a flat structure, namely, the length and the width dimensions are far greater than the thickness dimensions, for example, a frame structure formed by welding only a transverse rod and a longitudinal rod can be rotatably connected with one rotating frame 4.3 on two axial sides of the bottom plate 4.2, at the moment, the rotating shaft of the rotating frame 4.3 is perpendicular to the axial direction of the overhead pipeline 1, or two radial sides of the bottom plate 4.2 are respectively and rotatably provided with one rotating frame 4.3, at the moment, the rotating shaft of the rotating frame 4.3 is parallel to the axial direction of the overhead pipeline 1, the rotating frame 4.3 has a horizontal position and an inclined position on the rotating stroke, at the inclined position, the rotating frames 4.3 are obliquely arranged, and the two rotating frames 4.3 are unfolded upwards, in an inverted splayed arrangement, two rotating frames 4.3 are unfolded to support an overhead pipeline 1 positioned at an installation welding position, opposite sides of the overhead pipeline 1 are respectively pressed on the two rotating frames 4.3 in a one-to-one correspondence manner, and the arrangement has the advantages that the overhead pipeline 1 is put into a pipe gallery one by one and welded in the prior art, a single positioning trolley is arranged in lifting, installing and welding operations by means of an electric hoist, the electric hoist lifts and positions the positioning trolley, the embodiment is equivalent to integrating the supporting function on a second bracket 4, the second bracket 4 has two positions for supporting a pipeline during installation and/or welding at an inclined position, one positioning trolley is omitted, the first bracket 3 is connected onto the second bracket 4 in a sliding manner at the horizontal position, and the supporting position is realized at the moment, the two rotating frames 4.3 are overlapped, and the first bracket 3 is connected to the rotating frame 4.3 positioned on the upper layer in a sliding way.
In an alternative embodiment, the protruding portions and the groove portions on the two rotating frames 4.3 may be staggered, and in a horizontal position, the two rotating frames 4.3 are staggered to form a supporting surface, that is, the two rotating frames 4.3 are located at the same height, for example, the two rotating frames 4.3 are all in tooth-shaped structures, so that the horizontal position can be directly staggered to form a supporting surface without forming an upper layer structure and a lower layer structure.
When the first bracket 3 comprises the middle arc-shaped plate 3.2 and the outer arc-shaped plate 3.3, the appearance of the overhead pipeline 1 is still a complete circle when being welded, and the rotating frame 4.3 at the inclined position can better support the overhead pipeline 1 without the problem that the rotating frame 4.3 supports the edge of the first bracket 3.
Further, in the inclined position, the edge portion of the rotating frame 4.3 abuts against the foundation 2, and by means of the arrangement of the shape, for example, the edge portion of the rotating frame 4.3 is provided with a protruding portion 4.1, when the rotating frame 4.3 rotates to the inclined position, the protruding portion 4.1 abuts against the foundation 2, or when the protruding portion 4.1 abuts against the foundation 2, the position of the rotating frame 4.3 is the inclined position, in this embodiment, preferably, the protruding portion 4.1 is a limited track, that is, in the horizontal position, a sliding space of the first bracket 3 is formed between the two groups of protruding portions 4.1, in the inclined position, the protruding portion 4.1 abuts against the foundation 2 to support the rotating frame 4.3, and in the inclined position, the two rotating frames 4.3 are inverted splayed to have a larger adaptability to the radial dimension of the overhead pipeline 1, so that in a larger inclined range, the supporting of the overhead pipeline 1 in a certain radial range can be realized.
In another embodiment provided by the application, preferably, the rotating frame 4.3 is supported on the overhead pipeline 1 at the outer axial side of the position where the first bracket 3 is connected, that is, the rotating frame 4.3 is unfolded in the axial direction, the rotating shaft is perpendicular to the axial direction, and in the inclined position, the top of the rotating frame 4.3 is in a concave arc shape, so that the supporting effect is better according to the shape of the overhead pipeline 1.
In another embodiment provided by the application, the overhead pipeline support device further comprises an auxiliary frame 5, wherein two ends of the auxiliary frame 5 are respectively connected with two rotating frames 4.3 in an inclined position, and in the inclined position, the two rotating frames 4.3 bear extremely high pressure and are open ends, so that the rotating frames 4.3 are easy to deform, the two rotating frames 4.3 are connected through the auxiliary frame 5, the two auxiliary frames 5 are mutually supported, on one hand, the supporting capacity of the rotating frames 4.3 on the overhead pipeline 1 is improved, and on the other hand, the direction of the pressing pressure of the overhead pipeline 1 on the rotating frames 4.3 is opposite to the direction of the pulling force of the auxiliary frame 5 on the overhead pipeline 1 is reduced, and the probability of deformation of the auxiliary frame 5 is reduced.
In this embodiment, a specific structure of two auxiliary frames 5 is provided, one of the auxiliary frames is a steel wire rope, two ends of the steel wire rope are respectively connected with two rotating frames 4.3, and the ends of the steel wire rope are connected with the rotating frames 4.3 through a winding mechanism, one of the ends of the steel wire rope can be provided with the winding mechanism, and one winding mechanism can be respectively arranged at the two ends of the steel wire rope, and the winding mechanism realizes automatic winding and unwinding of a rope structure or a strip structure through coil springs.
The second auxiliary frame 5 is a telescopic rod, the telescopic rod comprises an axial rod 5.1 and a radial telescopic rod 5.2, two ends of the radial telescopic rod 5.2 are fixedly connected with one axial rod 5.1 respectively, two rotating frames 4.3 are provided with openings, two opposite side walls of the openings are provided with strip-shaped hole grooves 6, the strip-shaped hole grooves 6 refer to strip-shaped holes or strip-shaped grooves, two ends of the axial rod 5.1 rotate and are slidably connected in the two strip-shaped hole grooves 6, the radial telescopic rod 5.2 is positioned in the openings, in an inclined position, the overhead pipeline 1 presses down the radial telescopic rod 5.2, the radial telescopic rod 5.2 drives the two axial rods 5.1 to move downwards along the strip-shaped hole grooves 6 until the two rotating frames 4.3 are abutted to the overhead pipeline 1, and the two rotating frames 4.3 and one telescopic rod are abutted to the overhead pipeline 1 simultaneously by means of gravity of the overhead pipeline 1. The most critical point of this embodiment is that in the tilted position, the two turntables 4.3 are on their first side (opposite side in the tilted position), the bar-shaped telescopic bars are on their top side (in the tilted position, this side is above) supporting the overhead line 1, since the overhead line 1 is heavy, the turntables 4.3 and in particular the bar-shaped telescopic bars are likely to deform, when deformation occurs, both the turntables 4.3 and the bar-shaped telescopic bars are pressed down, but when the turntables 4.3 are rotated from the tilted position to the horizontal position, the turning of the turntables 4.3 is due to the rotation, and the radial telescopic bars 5.2 are turned over during the folding process, i.e. the originally concave part is turned up by the turning, in the horizontal position, the turntables 4.3 and the concave part of the bar-shaped telescopic bars in the tilted position become the convex part of the horizontal part, and the convex part is used for carrying the first bracket 3 and the overhead line 1, and automatic resetting of the deformed part can be achieved by means of the weight of the overhead line 1. More preferably, the floor is provided with an abutting column deformation part, and the abutting column abuts after the upward protruding part is reset, so that the concave deformation of the horizontal position is avoided in the use process.
During the rotation of the tilted position to the horizontal position, the radial telescopic rod 5.2 is turned inside the opening to avoid interference caused by the rotation of the turret 4.3.
In another embodiment provided by the application, the axial rod 5.1 is further connected in the bar-shaped hole groove 6 in a sliding manner through the sliding leg 7, wherein the sliding leg 7 comprises a main rod and two sub-rods 7.1 connected to one end of the main rod, the main rod is connected to the axial rod 5.1, rolling elements 7.2 such as rollers or rolling balls are arranged on the end parts of the two sub-rods 7.1, the two rolling elements 7.2 of the two sub-rods 7.1 roll on one side wall of the bar-shaped hole groove 6 at the same time, and the effect is that when the bar-shaped telescopic rod cannot move horizontally downwards to incline due to uneven pressure of the overhead pipeline 1 (such as pressing one end of the bar-shaped telescopic rod), the lower sub-rod 7.1 of the two sub-rods 7.1 at the downward inclined end of the bar-shaped telescopic rod is lifted, the end parts of the sub-rods 7.1 at the upward inclined end of the bar-shaped telescopic rod are directly abutted to the hole wall of the bar-shaped hole groove 6, namely, the sliding leg 7 is blocked in the bar-shaped hole 6 is not directly inclined any more, and the bar-shaped telescopic rod is not blocked in the sliding manner.
In this embodiment, further, the end of the bar-shaped slot 6 near the rotating shaft of the rotating frame 4.3 extends downwards to form an abutting port 6.1, wherein the downward extension is for the rotating frame 4.3 in the horizontal position, the bar-shaped slot 6 is horizontal as a whole, but the end of the bar-shaped slot near the rotating shaft of the rotating frame 4.3 extends downwards to form an abutting port 6.1, and correspondingly in the inclined position, the end of the bar-shaped slot 6 near the rotating shaft of the rotating frame 4.3 extends inwards to form the abutting port 6.1, wherein the inner side refers to the direction facing the other rotating frame 4.3, meanwhile, the radial telescopic rod 5.2 comprises a first rod 5.21 and a second rod 5.22 which are sleeved with each other, a blind hole 5.23 is formed in the end part of the first rod 5.21, a limiting protrusion 5.24 is arranged in an orifice of the blind hole 5.23, the second rod 5.22 is slidably connected in the blind hole 5.23 through an expanding part 5.25 at the end part of the second rod, so that the radial telescopic rod 5.2 has a maximum length and a minimum length on a telescopic stroke, and when the maximum length is that the expanding part 5.25 is abutted against the limiting protrusion 5.24, and when the minimum length is that the expanding part 5.25 is abutted against the bottom wall of the blind hole 5.23, the position relation of the radial telescopic rod 5.2 and the strip-shaped hole groove 6 is configured as follows: in the horizontal position, the radial telescopic rod 5.2 is the minimum length, namely can't shorten, two axial rods 5.1 at both ends are located in two butt joints 6.1 of two bar-shaped hole grooves 6 respectively at this moment, because radial telescopic rod 5.2 can't compress, and two axial rods 5.1 are limited by the butt joint 6.1 that two bar-shaped hole grooves 6 extend downwards, can't break away from under the action of gravity, especially when two rotating frames 4.3 are located same height, at this moment, radial telescopic rod 5.2 two rotating frames 4.3 butt limited, brought two effects, one of them, the tip of rotating frame 4.3 is connected on bottom plate 4.2 through the pivot rotation, the cooperation clearance of two makes rotating frame 4.3 have the radial range of activity of certain pivot, carry out butt limitation with two rotating frames 4.3 through radial telescopic rod 5.2, two rotating frames 4.3 each other limit, the range of activity has been eliminated, secondly, when first support 3 and pipeline 1 are to one of them 4.3 when being located at this moment, can bear the radial deformation of these two rotating frames 4.3, can bear the radial deformation by two rotating frames 4.3, this moment, the radial force is better for two rotating frames 4.3, because of bearing the two radial deformation of this rotating frames are born by two rotating frames 4.3, this moment, the radial deformation is better. When the radial expansion link 5.2 is incompressible and still can be extended, the limit is unidirectional, i.e. the limit is the direction of compressing the radial expansion link 5.2. When the turret 4.3 needs to be turned from the horizontal position to the tilted position, the axial rod 5.1 needs to be manually pulled out of the abutment 6.1.
While certain exemplary embodiments of the present application have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the application, which is defined by the appended claims.
Claims (7)
1. A piping lane overhead line insulation slidable support comprising a first support for welding to an overhead line and a second support secured to a foundation, the first support being slidably connected to the second support so as to be movable relative to the second support in an axial direction of the overhead line;
the second support comprises a bottom plate, two opposite sides of the bottom plate are respectively connected with a rotating frame in a rotating mode, the rotating frames are provided with horizontal positions and inclined positions on the rotating stroke, the two rotating frames are unfolded to support overhead pipelines located at installation welding positions, and the first support is connected to the second support in a sliding mode at the horizontal positions.
2. The piping lane overhead line thermal insulation slidable support of claim 1, wherein the first support comprises an inner arcuate plate bonded to the overhead line outer wall and a middle arcuate plate of the same radial dimension as the insulation layer of the overhead line, and wherein insulation material is disposed between the inner arcuate plate and the middle arcuate plate.
3. The piping lane overhead line thermal insulation slidable support of claim 2, further comprising an outer arcuate plate attached to an outer side of the middle arcuate plate, the outer arcuate plate being detachably connected to the middle arcuate plate, the outer arcuate plate being adapted to move with the second support in an axial direction of the overhead line.
4. The piping lane overhead line insulation slidable support of claim 1, wherein the second support is provided with a limit rail thereon, and the first support is slidably coupled to the limit rail to effect relative movement with the second support.
5. The piping lane overhead line insulation slidable rack of claim 1 wherein in the horizontal position, two of the turntables are stacked, the first rack is slidably connected to the upper turntables.
6. The piping lane overhead conduit insulation skid of claim 5, wherein in said inclined position an edge portion of said turret abuts said foundation.
7. The piping lane overhead line insulation slidable rack of claim 1, further comprising an auxiliary rack, wherein in the inclined position, both ends of the auxiliary rack are connected to two of the turntables, respectively.
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| CN202111621736.7A CN114542803B (en) | 2021-12-28 | 2021-12-28 | Heat-insulating sliding support for overhead pipeline of pipe gallery |
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| CN202111621736.7A CN114542803B (en) | 2021-12-28 | 2021-12-28 | Heat-insulating sliding support for overhead pipeline of pipe gallery |
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| CN115258406B (en) * | 2022-06-30 | 2023-07-14 | 安徽省天然气开发股份有限公司 | Transfer frame for natural gas conveying pipeline production |
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